/* === Variables & Theme === */
:root {
    --font-main: 'Inter', sans-serif;
}

.light-theme {
    --bg-main: #f0f2f5;
    --bg-card: #ffffff;
    --text-main: #1c1e21;
    --text-secondary: #65676b;
    --border-color: #dce1e4;
    --accent: #ffab00; /* Amber */
    --accent-glow: rgba(255, 171, 0, 0.3);
    --success: #10b981;
    --error: #ef4444;
    --vote-selected-bg: #e4e6eb; /* Lighter gray for selection */
}

.dark-theme {
    --bg-main: #18191a;
    --bg-card: #242526;
    --text-main: #e4e6eb;
    --text-secondary: #b0b3b8;
    --border-color: #3a3b3c;
    --accent: #ffab00; /* Amber */
    --accent-glow: rgba(255, 171, 0, 0.4);
    --success: #10b981;
    --error: #ef4444;
    --vote-selected-bg: #3a3b3c; /* Lighter gray for selection */
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* === Interactive Cards (Levitation) === */
.interactive-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.interactive-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 0 20px 5px var(--accent-glow);
}

.interactive-card:hover .interactive-text,
.interactive-card:hover .interactive-icon {
    color: var(--accent);
}

.interactive-text, .interactive-icon { transition: color 0.3s ease; }

/* === Buttons & Inputs === */
.custom-btn {
    background-color: var(--accent);
    color: #111;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.custom-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 15px 3px var(--accent-glow);
}

.secondary-btn {
     background-color: var(--bg-card);
     color: var(--text-main);
     border: 1px solid var(--border-color);
     transition: all 0.2s ease;
}
.secondary-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Vote button selection style */
.vote-selected-like, .vote-selected-dislike {
    background-color: var(--vote-selected-bg);
    border-color: var(--border-color);
}

.icon-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    cursor: pointer;
}
.icon-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.rotating-icon svg {
    transition: transform 0.5s ease;
}

.rotating-icon:hover svg {
    transform: rotate(180deg);
}
.custom-input {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-main);
}
.custom-input:focus { outline: none; border-color: var(--accent); }

/* === Quiz Specifics === */
.option-label {
    display: block;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: 0.2s;
    background: var(--bg-main);
}
.option-label:hover { border-color: var(--accent); }

.option-input:checked + span { color: var(--accent); font-weight: bold; }

.correct { border-color: var(--success) !important; color: var(--success); box-shadow: 0 0 10px rgba(16, 185, 129, 0.2); }
.wrong { border-color: var(--error) !important; color: var(--error); box-shadow: 0 0 10px rgba(239, 68, 68, 0.2); }

/* === Utilities === */
.hidden { display: none; }
.fade-in { animation: fadeIn 0.4s ease-out forwards; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}